ITS FIXED:omg: Well I had nothing to lose, so gave this a go,
Seeing as the original microsoft clamps had been replaced in the past, the originals which are just clip on are basically tensioners that hold the heatsinks onto the CPU and GPU with only a moderate pressure, these are removed, add substituted by 8 screws, with a flat washer and two nylon washers per screw each side of the board, the nylon washers are supposed to give the correct gap between heatsink and motherboard, to exert a little extra pressure on the heatsink.
so substituted the clamp kit screws for 8 longer screws of the correct thread, and 8 metal washers, and 8 nuts, so fitted the nut and washer to the bolt first, then pushed the bolt through the motherboard, screwed it into the heatsink, then tightened the nuts, until there was firm pressure on the heatsinks.
so I now had a board with heatsinks firmly attached, and 8 bolts protruding about half an inch below the bottom of the board.
now this is where it gets silly, the next stage was to place it on the GEORGE FORMAN grill, to sort of pre-heat the board, and I left it there nicely warming away for about 10 mins checking the temperature every now and again, making sure nothing was looking amiss, or any electrolytic caps expanding.
So when it got to about the medium rare stage:D, out came the heat gun, set to medium heat, and worked it between the two heat sinks for about 4 minutes, then onto high and the same technique for about 1 1/2 minutes, off with the grill, and heat gun on to cool for a further five minutes, to bring the temperature down slightly.
switched off, and then left it for about half an hour to cool right down, then removed it from the grill, I could hear it making tinkling noises in the kitchen as it was cooling.
When it was finally cool, removed the bolts, and refitted the clamp kit originals, inserted the switch unit, DVD-Rom drive, and power lead, and hit the on button, to be greeted by one green light, instead of the dreaded 3 red lights, I could not believe it at first, I was sure I had cooked yet another board, (tried to fix one before, and ended up with swollen caps), so reassembled it , and tried a game.
It is working perfect, no problems at all.
Was this luck, or a well executed bodge. I did not believe this would of worked, but as the console was dead anyway, I had nothing to loose
Seeing as the original microsoft clamps had been replaced in the past, the originals which are just clip on are basically tensioners that hold the heatsinks onto the CPU and GPU with only a moderate pressure, these are removed, add substituted by 8 screws, with a flat washer and two nylon washers per screw each side of the board, the nylon washers are supposed to give the correct gap between heatsink and motherboard, to exert a little extra pressure on the heatsink.
so substituted the clamp kit screws for 8 longer screws of the correct thread, and 8 metal washers, and 8 nuts, so fitted the nut and washer to the bolt first, then pushed the bolt through the motherboard, screwed it into the heatsink, then tightened the nuts, until there was firm pressure on the heatsinks.
so I now had a board with heatsinks firmly attached, and 8 bolts protruding about half an inch below the bottom of the board.
now this is where it gets silly, the next stage was to place it on the GEORGE FORMAN grill, to sort of pre-heat the board, and I left it there nicely warming away for about 10 mins checking the temperature every now and again, making sure nothing was looking amiss, or any electrolytic caps expanding.
So when it got to about the medium rare stage:D, out came the heat gun, set to medium heat, and worked it between the two heat sinks for about 4 minutes, then onto high and the same technique for about 1 1/2 minutes, off with the grill, and heat gun on to cool for a further five minutes, to bring the temperature down slightly.
switched off, and then left it for about half an hour to cool right down, then removed it from the grill, I could hear it making tinkling noises in the kitchen as it was cooling.
When it was finally cool, removed the bolts, and refitted the clamp kit originals, inserted the switch unit, DVD-Rom drive, and power lead, and hit the on button, to be greeted by one green light, instead of the dreaded 3 red lights, I could not believe it at first, I was sure I had cooked yet another board, (tried to fix one before, and ended up with swollen caps), so reassembled it , and tried a game.
It is working perfect, no problems at all.
Was this luck, or a well executed bodge. I did not believe this would of worked, but as the console was dead anyway, I had nothing to loose
